Allometric growth of bone, muscular and fat tissues in carcass of Santa Ines and Bergamacia lambs

Revista Brasileira de Zootecnia

Bonagúrio, Sarita²  Santos, Cristiane Leal dos²  Pérez, Juan Ramon Olalquiaga²  Siqueira, Edson Ramos¹  Muniz, Joel Augusto² 

[1] Universidade Estadual Paulista, Botucatu;Universidade Federal de Lavras, Lavras

关键词: allometric;    Bergamacia;    bone;    fat;    growth;    muscle;    Santa Ines   IntroduçãoNo animal destinado à produção de carne;    a carcaça constitui-se no principal produto comercializável;   

DOI  :  10.1590/S1516-35982001000200028

学科分类：兽医学

来源: Universidade Federal de Vicosa

【 摘 要 】

- The work was conducted with the objective to study the allometric growth of the bone, muscular and fat tissues in the left side of growing lamb carcasses. Thirty-six, twenty-four Santa Ines and twelve Bergamacia lambs were used. The animals were kept in individual pens and fed ad libitum diets. The slaughtering was done when the animals reached the live weight of 15, 25, 35 and 45 kg. The amount of the different tissues was obtained through the dissection of the left half of the carcass. The amount of the different tissues was obtained through the dissection of the leg, longissimus muscle, rib, breast and shoulder. The total amount of bone, muscle and fat tissues were obtained by the sum of each amount of commercial cut. The study of the relative tissue composition development was carried out using the model developed by HUXLEY (1932). A negative heterogonic (b< 1) growth for the bone tissue, an isogonic (b =1) growth for muscular tissue and positive heterogonic (b> 1) for the fat tissue in relation to the half side of the carcass was observed.

【 授权许可】

CC BY-NC